code: def test_init(self):
      aflink = TASK_UTILS.build(self.cfg)
      assert aflink.temporal_threshold == (0, 30)
      assert aflink.spatial_threshold == 75
      assert aflink.confidence_threshold == 0.95
      assert isinstance(aflink.model, nn.Module)
  
file_path: mmdetection/tests/test_models/test_task_modules/test_track/test_aflink.py
imports: from unittest import TestCase
  import numpy
  from mmengine.registry import init_default_scope
  from torch import nn
  from mmdet.registry import TASK_UTILS
label_desc: Use image node_id 2 for calling the TestAppearanceFreeLink obj's underlying member method code with example usage: obj.test_init() without return types